JPH01113167A - Production of light alloy wheel - Google Patents
Production of light alloy wheelInfo
- Publication number
- JPH01113167A JPH01113167A JP26983187A JP26983187A JPH01113167A JP H01113167 A JPH01113167 A JP H01113167A JP 26983187 A JP26983187 A JP 26983187A JP 26983187 A JP26983187 A JP 26983187A JP H01113167 A JPH01113167 A JP H01113167A
- Authority
- JP
- Japan
- Prior art keywords
- hub
- casting
- runner
- hub hole
- die
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910001234 light alloy Inorganic materials 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000005266 casting Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 238000003754 machining Methods 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 abstract description 2
- 229910002065 alloy metal Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は軽合金ホイール製造法の改良に関し、鋳造によ
る湯境い部発生を防止して製品歩留まり率を向上させる
ことを目的とする。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an improvement in a light alloy wheel manufacturing method, and an object of the present invention is to improve the product yield rate by preventing the occurrence of hot spots during casting.
（従来の技術）
従来軽合金ホイールを鋳造する場合には第５図に示すよ
うに、下型ｌと上型４．そして横型８からなる鋳造金型
に下から湯口９を通して押し上げられた溶湯を充満させ
て鋳込むようにしている。(Prior Art) Conventionally, when casting a light alloy wheel, as shown in FIG. 5, a lower mold 1 and an upper mold 4. Then, a casting mold consisting of a horizontal die 8 is filled with molten metal pushed up from below through a sprue 9 and poured.
（発明が解決使用とする問題点）
ところが、ホイールの形状によっては上記した第５図の
構成のように、したから押し上げられた溶湯が下型１の
段差Ｈを有する高（なった部分３まで進み、−旦そこで
ストップし、その後に、金型全体に溶湯が充満した場合
にはさきに流入した下型の高くなった部分３上の溶湯が
すでに酸化して表面に酸化皮膜が形成されており、先に
湯がまわってきた部分と後からまわってきた湯とが合流
した場合、両者が完全に溶は合わず、湯境いが生してそ
れが外観不良や、鋳造欠陥となって鋳造品の歩留まりを
悪化させることが多かった。(Problem to be Solved by the Invention) However, depending on the shape of the wheel, as in the configuration shown in FIG. If the molten metal fills the entire mold, the molten metal on the raised part 3 of the lower mold has already been oxidized and an oxide film is formed on the surface. However, if the part where the hot water has been flowing first and the hot water that has been flowing later join together, they will not melt completely and a gap will form, which will cause poor appearance and casting defects. The yield of cast products often deteriorated.
（問題点を解決するための手段）
上記の問題点は、本発明による次の軽合金ホイ−ルの製
造方法によって解決される。 すなわち少なくとも上型
と下型とからなる鋳造金型によりディスクの表側に周方
向に無端状に連続する略平坦面を有し、しかも該平坦面
とハブ取付部との間にハブ軸方向に段差のある軽合金ホ
イールを製造する場合において、湯口に続くハブ穴予定
部からディスク表面の略平坦面に向けて放射状に配設さ
れた複数の湯道を有する鋳造金型を使用してハブ予定部
からディスク表面の略平坦面に向けて複数の湯道用リブ
を放射状に配したホイール素材を鋳造した後、機械加工
により上記湯道用リブを除去するようにしたことを特徴
とするものである。(Means for Solving the Problems) The above problems are solved by the following method of manufacturing a light alloy wheel according to the present invention. That is, a casting mold consisting of at least an upper mold and a lower mold is used to form a substantially flat surface that continues endlessly in the circumferential direction on the front side of the disk, and there is also a step in the hub axial direction between the flat surface and the hub mounting part. When manufacturing a certain type of light alloy wheel, a casting mold is used that has a plurality of runners arranged radially from the planned hub hole section following the sprue toward the substantially flat surface of the disk surface. A wheel material having a plurality of runner ribs arranged radially toward a substantially flat surface of the disk is cast, and then the runner ribs are removed by machining. .
以下において本発明の具体的な内容を図示の実施例をも
とに説明すると、
第１図は本発明によるホイールの製造方法に使用する鋳
造金型の湯口部の上下型の部分断面図を示しており、２
１は鋳造金型の下型、２７は上型をあられす。The specific contents of the present invention will be explained below based on illustrated embodiments. Fig. 1 shows a partial cross-sectional view of the upper and lower molds of the sprue part of the casting mold used in the wheel manufacturing method according to the present invention. 2
1 is the lower mold of the casting mold, and 27 is the upper mold.
下型１１は鋳造すべき軽合金ホイールの正面側を形成す
るもので、その上面側中央に設けた凹部２１ａには第２
図に示すような補助下型２２が嵌装されている。The lower mold 11 forms the front side of the light alloy wheel to be cast, and a recess 21a provided in the center of the upper surface side has a second
An auxiliary lower mold 22 as shown in the figure is fitted.
この補助下型２２はその上面外周側が下型の上面と路面
−となり、連続して平坦面２３を形成するとともに、中
心に湯口２６を有し、該湯口２６を中心としたその周縁
部にはハブ取付部形成用の上記した平坦面２３との間に
段差Ｈを有する突起２４が形成され、しかも該ハブ取付
部形成用突起２４には周方向等間隔位置に４ケ所の割り
溝を施して前記ハブ穴予定部からディスク表面の略平坦
面に向けて湯道２５が放射状に形成されている。This auxiliary lower mold 22 has an outer peripheral side of its upper surface that is the same as the upper surface of the lower mold and a road surface, and forms a continuous flat surface 23, and has a sprue 26 in the center, and the peripheral edge around the sprue 26 is A protrusion 24 having a step H is formed between it and the above-mentioned flat surface 23 for forming the hub attachment part, and the protrusion 24 for forming the hub attachment part is provided with four grooves at equal intervals in the circumferential direction. A runner 25 is formed radially from the planned hub hole toward the substantially flat surface of the disk surface.
−力士型２７は上記下型２１の上面に略対応する形状を
有し、中央に湯案内部３０を有するとともに、その周縁
部には前記した下型の突起２４に対応する凹部２９を、
またその外周側には下型の平坦面２３に対応する凸部２
８を形成してなるものである。- The sumo wrestler mold 27 has a shape that roughly corresponds to the upper surface of the lower mold 21, has a hot water guide part 30 in the center, and has a recess 29 corresponding to the protrusion 24 of the lower mold on its periphery.
Also, on the outer peripheral side thereof, there is a convex portion 2 corresponding to the flat surface 23 of the lower mold.
8.
向上記の実施例においては下型に形成した湯道２５はハ
ブ取付部形成用の突起２４の周方向に４ケ所形成したが
、必ずしもこれに限定されるものではなく、ホイールの
形状や湯まわりの状態如何により必要に応じて２ケ所あ
るいはそれ以上とすることが考えられる。In the embodiment described above, the runners 25 formed in the lower mold were formed at four locations in the circumferential direction of the projection 24 for forming the hub attachment part, but the invention is not necessarily limited to this, and the number of runners 25 formed in the lower mold may vary depending on the shape of the wheel and the runner area. It is conceivable to provide two or more locations as necessary depending on the state of the location.
（作 用）
上記した実施例の構成において、下型２１と上型２７、
そして横型３１をセットした後、湯口部２６より上型２
７と下型２１との間に形成された空間部内に合金溶湯を
押し上げ給湯すると、湯は矢印で示したようにハブ取付
部形成用突起２４を乗り越える流れと湯道２５に沿って
平坦面２３方向へ移動する流れとに分流し、上型２７の
凹部２９と平坦面２３にそれぞれ接する部分の給湯が略
同時的に完了する。(Function) In the configuration of the embodiment described above, the lower mold 21 and the upper mold 27,
After setting the horizontal mold 31, the upper mold 2
When the molten alloy is pushed up and supplied into the space formed between 7 and the lower mold 21, the molten metal flows over the hub attachment forming projection 24 and along the runner 25 to the flat surface 23 as shown by the arrow. The hot water is divided into the flows moving in the same direction, and the supply of hot water to the portions contacting the recess 29 and the flat surface 23 of the upper mold 27 is completed substantially simultaneously.
一定の時間経過後に上・下金型２１．２７および横型３
１を取り外して第３図に示した鋳造品を得る。After a certain period of time, the upper and lower molds 21, 27 and the horizontal mold 3
1 is removed to obtain the cast product shown in FIG.
この鋳造品は両側に大径のフランジ４１．４１を有する
とともに正面側には飾り窓４８のほか略平坦部（僅かに
湾曲形成されている場合も含む）４２、およびハブ取付
部４３．湯道用リブ、４４゜ハブ穴予定部４５が形成さ
れており、次工程の機械加工により上記湯道用リブ４４
の除去、およびハブ穴予定部４５の切削によるハブ穴形
成をはじめとした仕上げ加工をおこなって第４図に示し
た通りの製品を得る。This cast product has large-diameter flanges 41, 41 on both sides, and a decorative window 48 on the front side as well as a generally flat part (including a slightly curved part) 42, and a hub mounting part 43. A rib for the runner and a 44° hub hole planned portion 45 are formed, and the rib for the runner 44 is formed by machining in the next process.
Finishing operations including removal of the hub hole and forming the hub hole by cutting the planned hub hole portion 45 are performed to obtain a product as shown in FIG.
（発明の効果）
本発明は上記した通り、金型を用いて軽合金ホイールを
製造する場合において、湯口につづくハブ穴予定部から
ディスク表面の略平坦面に向けて放射状に配設された複
数の湯道を有する鋳造金型を使用してハブ穴予定部から
ディスク表面の略平坦面に向けて複数の湯道用リブを放
射状に配したホイール素材を鋳造した後、機械加工によ
り上記湯道用リブを除去するようにしたものであるため
に、湯口からの給湯に際し、軸方向に段差のあるハブ取
付部と平坦面部とに分流して同時的に給湯することがで
きるため、湯回りがホイール全体にわたり平均化し、そ
の結果表面酸化皮膜の介在による湯境いや、引は巣の発
生を防止でき、鋳造欠陥や外観不良による鋳造製品の歩
留まり率を大幅に向上させることができる。(Effects of the Invention) As described above, when manufacturing a light alloy wheel using a mold, the present invention provides a plurality of radially arranged hub holes extending from a planned hub hole following a sprue toward a substantially flat surface of a disk surface. After casting a wheel material with a plurality of runner ribs arranged radially from the planned hub hole toward the substantially flat surface of the disk surface using a casting mold with runners, the above runners are machined. Since the ribs have been removed, when hot water is supplied from the sprue, it is possible to simultaneously supply hot water by dividing it into the hub mounting part, which has a step in the axial direction, and the flat surface part. It is evened out over the entire wheel, and as a result, it is possible to prevent the formation of hot spots and cavities due to the presence of surface oxide films, and it is possible to significantly improve the yield rate of cast products due to casting defects and poor appearance.
第１図は本発明において使用する鋳造金型の湯口部分を
中心とした要部断面図、
第２図は補助下型の一部を省略した斜視図、第３図は本
発明の金型により得られたホイール素材の斜視図、
第４図は仕上げ加工された軽合金ホイールの斜視図、
第５図は従来の軽合金ホイール鋳造用金型の要部断面図
である。
２１・・・・・・下型 ２２・・・・・・補助下
型２３・・・・・・平坦面部 ２４・・・・・・ハブ
取付部形成用突起２５・・・・・・湯道 ２６・
・・・・・湯口部２７・・・・・・上型 ３０・
・・・・・湯案内部３１・・・・・・横型 ４２
・・・・・・平坦面部４３・・・・・・ハブ取付部 ４
４・・・・・・湯道用リブ４５・・・・・・ハブ穴予定
部
第 ２ 図Fig. 1 is a cross-sectional view of the main parts of the casting mold used in the present invention, centering on the sprue part, Fig. 2 is a perspective view with a part of the auxiliary lower mold omitted, and Fig. 3 is a cross-sectional view of the casting mold used in the present invention. FIG. 4 is a perspective view of the obtained wheel material, FIG. 4 is a perspective view of a finished light alloy wheel, and FIG. 5 is a sectional view of a main part of a conventional mold for casting a light alloy wheel. 21...Lower mold 22...Auxiliary lower mold 23...Flat surface part 24...Protrusion for forming hub attachment part 25...Run runner 26・
... Sprue part 27 ... Upper mold 30.
... Hot water guide section 31 ... Horizontal type 42
...Flat surface part 43 ... Hub mounting part 4
4...Rib for runner 45...Planned hub hole part Fig. 2
Claims (1)
クの表側に周方向に無端状に連続する略平坦面を有し、
しかも該平坦面とハブ取付部との間にハブ軸方向に段差
のある軽合金ホィールを製造する場合において、湯口に
つづくハブ穴予定部からディスク表面の略平坦面に向け
て放射状に配設された複数の湯道を有する鋳造金型を使
用してハブ穴予定部からディスク表面の略平坦面に向け
て複数の湯道用リブを放射状に配したホィール素材を鋳
造した後、機械加工により上記湯道用リブを除去するよ
うにした軽合金ホィールの製造方法。A casting mold consisting of at least an upper mold and a lower mold has a substantially flat surface continuous endlessly in the circumferential direction on the front side of the disk,
Moreover, when manufacturing a light alloy wheel that has a step in the hub axial direction between the flat surface and the hub mounting portion, the wheels are arranged radially from the planned hub hole that follows the sprue toward the substantially flat surface of the disk surface. After casting a wheel material with a plurality of runner ribs arranged radially from the planned hub hole toward the substantially flat surface of the disk surface using a casting mold with multiple runners, the above-mentioned A method for manufacturing a light alloy wheel in which runner ribs are removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62269831A JP2631667B2 (en) | 1987-10-26 | 1987-10-26 | Manufacturing method of light alloy wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62269831A JP2631667B2 (en) | 1987-10-26 | 1987-10-26 | Manufacturing method of light alloy wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01113167A true JPH01113167A (en) | 1989-05-01 |
| JP2631667B2 JP2631667B2 (en) | 1997-07-16 |
Family
ID=17477786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62269831A Expired - Fee Related JP2631667B2 (en) | 1987-10-26 | 1987-10-26 | Manufacturing method of light alloy wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2631667B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047716A (en) * | 2018-09-13 | 2018-12-21 | 广州金邦液态模锻技术有限公司 | A kind of flow guiding structure for vertical extrusion casting mold |
| CN109465397A (en) * | 2018-12-29 | 2019-03-15 | 湖州中联机械制造有限公司 | A kind of casting technique of lower bearing bracket |
| CN114713776A (en) * | 2022-04-12 | 2022-07-08 | 江西荣恩轮毂制造有限公司 | Mold applied to aluminum alloy wheel hub and casting method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942270B (en) * | 2014-03-27 | 2017-01-11 | 广东兴发铝业有限公司 | New energy automobile motor shell die |
| CN106493306B (en) * | 2016-11-08 | 2018-05-11 | 广西玉柴机器股份有限公司 | The casting method of bell housing with gear chamber cover |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5896854U (en) * | 1981-12-24 | 1983-07-01 | 朝日アルミニウム株式会社 | Wheel forming equipment |
| JPS59185056U (en) * | 1983-05-25 | 1984-12-08 | 本田技研工業株式会社 | Molten metal forging equipment for internal combustion engine pistons |
-
1987
- 1987-10-26 JP JP62269831A patent/JP2631667B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5896854U (en) * | 1981-12-24 | 1983-07-01 | 朝日アルミニウム株式会社 | Wheel forming equipment |
| JPS59185056U (en) * | 1983-05-25 | 1984-12-08 | 本田技研工業株式会社 | Molten metal forging equipment for internal combustion engine pistons |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047716A (en) * | 2018-09-13 | 2018-12-21 | 广州金邦液态模锻技术有限公司 | A kind of flow guiding structure for vertical extrusion casting mold |
| CN109465397A (en) * | 2018-12-29 | 2019-03-15 | 湖州中联机械制造有限公司 | A kind of casting technique of lower bearing bracket |
| CN114713776A (en) * | 2022-04-12 | 2022-07-08 | 江西荣恩轮毂制造有限公司 | Mold applied to aluminum alloy wheel hub and casting method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2631667B2 (en) | 1997-07-16 |
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